package y23.Oct;
import java.util.Scanner;

public class Test23 {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        int n = in.nextInt();

    }
    public static int num(int i){
        int n;
        if(i>=3){
            n = i/3-1;
        }else{
            n = 0;
        }
        int num = (int) Math.pow(2,n);
        return num;
    }
}
